In most cases, SMO S40 notes a malfunction (a malfunction
can lead to disruption in comfort) and indicates this with
alarms, and instructions for action, in the display.
Info-menu
All the control module’s measurement values are gathered
under menu 3.1 - "Operating info" in the control module’s
menu system. Examining the values in this menu can often
make it easier to identify the source of the fault.
Manage alarm
13.45 3
Your system has an active alarm.
Please select action or contact your installer.
I want to see more info about the alarm
I want to change settings for my system
October
13.45 3 October
The installation pump has no contact with the supply
temperature sensor. Additional heat is blocked. The installation
switches to alarm operation, which may mean a reduction of
comfort.
Select auxiliary operation and contact your installer.
Reset alarm and try again
Start auxiliary mode
In the event of an
alarm, a malfunction
has occurred and the
status lamp shines
with a steady red light.
You receive informa-
tion about the alarm
in the smartguide on
the display.
ALARM
In the event of an
alarm with a red
status lamp, a mal-
function has occurred
that SMO S40 cannot remedy itself. On the display, you can
see what type of alarm it is and reset it.
In many cases, it is sufficient to select “Reset alarm and try
again” for the installation to revert to normal operation.
If a white light comes on after selecting “Reset alarm and
try again”, the alarm has been remedied.
"Auxiliary operation" is a type of emergency mode. This
means that the installation attempts to produce heat and/or
hot water, even though there is some kind of problem. This
could mean that the heat pump’s compressor is not in oper-
ation. In this case, any electric additional heat produces heat
and/or hot water.
Caution
Selecting "Auxiliary operation" is not the same as
correcting the problem that caused the alarm. The
status lamp will therefore remain red.
If the alarm does not reset, contact your installer for suitable
remedial action.
Caution
You need the product’s (14 digit) serial number for
servicing and support.
Troubleshooting
If the operational interference is not shown in the display
the following tips can be used:
Basic actions
Start by checking the following items:
•
The installation’s group and main fuses.
•
The building's earth circuit breaker.
•
Correctly set load monitor.
Low hot water temperature or a lack of hot
water
This part of the fault-tracing chapter only applies if the
water heater is installed in the system.
•
Closed or throttled externally mounted filling valve for the
hot water.
–
Open the valve.
•
Mixing valve (if there is one installed) set too low.
–
Adjust the mixer valve.
•
SMO S40 in incorrect operating mode.
–
Contact your installer!
•
Large hot water consumption.
–
Wait until the hot water has heated up. Temporarily in-
creased hot water capacity can be activated in the "Hot
water" home screen, in menu 2.1 - "More hot water" or
via myUplink.
•
Too low hot water setting.
–
Enter menu 2.2 - "Hot water demand" and select a
higher demand mode.
•
Low hot water access with the “Smart Control” function
active.
–
If the hot water usage has been low for an extended
period of time, less hot water than normal will be pro-
duced. Activate "More hot water" via the "Hot water”
home screen, in menu 2.1 - "More hot water" or via my-
Uplink.
•
Too low or no operating prioritisation of hot water.
–
Contact your installer!
•
"Holiday" activated in menu 6.
–
Enter menu 6 and deactivate.
Low room temperature
•
Closed thermostats in several rooms.
13
Chapter 6 | Disturbances in comfort
NIBE SMO S40
Disturbances in comfort
